Originally Posted by Baconsammy
Dark Souls, Demon Souls, Borderlands, Borderlands 2. I can go on.
There's no one right way to do NG+. Plenty of games involve a difficulty increase, plenty don't.
In the case of DD they miscalculated as it's closer to Dark Souls than Chrono Trigger. Or, just as likely IMO they didn't have time to actually properly balance and test a higher difficulty. Capcom has been rushing games out left and right due to their rolling financial crisis.